Topic

Basic Probability

Practice related MCQ quizzes and improve step by step.

Practice by Education Level

Quizzes in Basic Probability for Grade 8

There are 12 white buttons and 2 red buttons in a bag. One button is selected at random. What is the probability of NOT selecting a red button?

  • 12 white buttons
  • 2 red buttons

Choose the best answer.

  • 12/13
  • 6/7
  • 1/7
  • 85.7%
  • 7/6
Correct answer(s):
  • 6/7

There are 4 yellow tiles and 4 green tiles in a bag. One tile is selected at random. What is the probability of NOT selecting a yellow tile?

  • 4 yellow tiles
  • 4 green tiles

Choose the best answer.

  • 2
  • 1/2
  • 50%
  • 4/7
Correct answer(s):
  • 1/2

There are 7 yellow counters and 3 red counters in a bag. One counter is selected at random. What is the probability of NOT selecting a yellow counter?

  • 7 yellow counters
  • 3 red counters

Choose the best answer.

  • 3/10
  • 7/10
  • 10/3
  • 30%
  • 1/3
Correct answer(s):
  • 3/10

There are 9 black counters and 9 red counters in a bag. One counter is selected at random. What is the probability of NOT selecting a black counter?

  • 9 black counters
  • 9 red counters

Choose the best answer.

  • 1/2
  • 50%
  • 9/17
  • 2
Correct answer(s):
  • 1/2

There are 11 orange buttons and 6 blue buttons in a bag. One button is selected at random. What is the probability of NOT selecting a blue button?

  • 11 orange buttons
  • 6 blue buttons

Choose the best answer.

  • 11/17
  • 6/17
  • 11/16
  • 17/11
  • 64.7%
Correct answer(s):
  • 11/17

There are 4 yellow beads and 6 orange beads in a bag. One bead is selected at random. What is the probability of NOT selecting a orange bead?

  • 4 yellow beads
  • 6 orange beads

Choose the best answer.

  • 2/5
  • 5/2
  • 4/9
  • 40%
  • 3/5
Correct answer(s):
  • 2/5

There are 8 red beads and 4 yellow beads in a bag. One bead is selected at random. What is the probability of NOT selecting a yellow bead?

  • 8 red beads
  • 4 yellow beads

Choose the best answer.

  • 2/3
  • 66.7%
  • 3/2
  • 8/11
  • 1/3
Correct answer(s):
  • 2/3

There are 3 white cards and 10 purple cards in a bag. One card is selected at random. What is the probability of NOT selecting a white card?

  • 3 white cards
  • 10 purple cards

Choose the best answer.

  • 13/10
  • 76.9%
  • 5/6
  • 3/13
  • 10/13
Correct answer(s):
  • 10/13

A box contains 4 red tokens, 2 purple tokens, and 6 orange tokens. If one token is chosen without looking, what is the probability that it is orange?

  • 4 red tokens
  • 2 purple tokens
  • 6 orange tokens

Choose the best answer.

  • 1/3
  • 1/2
  • 1/6
  • 6/11
  • 6/12
Correct answer(s):
  • 1/2

There are 8 white tiles and 10 green tiles in a bag. One tile is selected at random. What is the probability of NOT selecting a white tile?

  • 8 white tiles
  • 10 green tiles

Choose the best answer.

  • 10/17
  • 55.6%
  • 5/9
  • 9/5
  • 4/9
Correct answer(s):
  • 5/9

A box contains 7 white marbles, 5 green marbles, and 4 red marbles. If one marble is chosen without looking, what is the probability that it is red?

  • 7 white marbles
  • 5 green marbles
  • 4 red marbles

Choose the best answer.

  • 5/16
  • 3/4
  • 7/16
  • 4/15
  • 1/4
Correct answer(s):
  • 1/4

A box contains 4 yellow buttons, 8 orange buttons, and 1 blue buttons. If one button is chosen without looking, what is the probability that it is yellow?

  • 4 yellow buttons
  • 8 orange buttons
  • 1 blue buttons

Choose the best answer.

  • 8/13
  • 4/13
  • 9/13
  • 1/3
Correct answer(s):
  • 4/13

A box contains 3 green cards, 8 orange cards, and 1 black cards. If one card is chosen without looking, what is the probability that it is orange?

  • 3 green cards
  • 8 orange cards
  • 1 black cards

Choose the best answer.

  • 2/3
  • 8/11
  • 1/4
  • 8/12
  • 1/3
Correct answer(s):
  • 2/3

A box contains 5 yellow cards, 8 blue cards, and 6 red cards. If one card is chosen without looking, what is the probability that it is blue?

  • 5 yellow cards
  • 8 blue cards
  • 6 red cards

Choose the best answer.

  • 5/19
  • 4/9
  • 11/19
  • 8/19
Correct answer(s):
  • 8/19

A box contains 6 black tokens, 4 red tokens, and 5 orange tokens. If one token is chosen without looking, what is the probability that it is black?

  • 6 black tokens
  • 4 red tokens
  • 5 orange tokens

Choose the best answer.

  • 6/15
  • 3/7
  • 3/5
  • 4/15
  • 2/5
Correct answer(s):
  • 2/5

A box contains 5 blue tokens, 6 yellow tokens, and 1 white tokens. If one token is chosen without looking, what is the probability that it is white?

  • 5 blue tokens
  • 6 yellow tokens
  • 1 white tokens

Choose the best answer.

  • 11/12
  • 1/2
  • 1/11
  • 1/12
  • 5/12
Correct answer(s):
  • 1/12

A box contains 7 orange beads, 7 red beads, and 2 black beads. If one bead is chosen without looking, what is the probability that it is black?

  • 7 orange beads
  • 7 red beads
  • 2 black beads

Choose the best answer.

  • 1/8
  • 7/8
  • 7/16
  • 2/16
  • 2/15
Correct answer(s):
  • 1/8

A box contains 4 orange beads, 5 black beads, and 7 green beads. If one bead is chosen without looking, what is the probability that it is green?

  • 4 orange beads
  • 5 black beads
  • 7 green beads

Choose the best answer.

  • 7/16
  • 5/16
  • 7/15
  • 9/16
  • 1/4
Correct answer(s):
  • 7/16

A box contains 9 red beads, 4 purple beads, and 1 white beads. If one bead is chosen without looking, what is the probability that it is white?

  • 9 red beads
  • 4 purple beads
  • 1 white beads

Choose the best answer.

  • 9/14
  • 1/13
  • 2/7
  • 13/14
  • 1/14
Correct answer(s):
  • 1/14

A box contains 5 red tokens, 8 green tokens, and 6 orange tokens. If one token is chosen without looking, what is the probability that it is green?

  • 5 red tokens
  • 8 green tokens
  • 6 orange tokens

Choose the best answer.

  • 4/9
  • 8/19
  • 11/19
  • 5/19
Correct answer(s):
  • 8/19